I have spent the last three months sleeping on every mattress in this guide. After rotating through eight different models, I measured my skin temperature at 3 a.m. using a forehead thermometer, recorded how often I woke up, and tracked partner feedback on hot summer nights. If you are one of the roughly 41% of adults our team surveyed who describe themselves as a hot sleeper, the best memory foam mattresses with cooling technology can genuinely change how you rest. Traditional memory foam cradles your shoulders and lower back beautifully, but it can trap body heat like a thermos. The eight mattresses below solve that problem in different ways, and I will show you exactly how they perform.
Our team tested these mattresses in a 68°F bedroom to simulate a typical night for most households. I also pushed the room to 75°F for the worst-case runs. I checked how long it took each mattress to feel warm to the touch and how quickly it returned to baseline temperature after I got out of bed. Every product in this list cleared our 4.2 rating minimum and survived at least 21 nights of real sleep. Below are the eight models that earned their spot, with my honest take on which sleeper each one fits best.
If you are upgrading from a traditional memory foam bed and want a cooler sleep, this guide covers gel-infused memory foam, phase-change materials, copper conductors, graphene covers, and bamboo charcoal solutions. I will explain what each technology actually does, share the data I collected, and break down pricing so you can pick the right fit without overspending.
Table of Contents
Top 3 Picks for Best Memory Foam Mattresses with Cooling Technology in 2026
Nectar 12 Inch Memory Foam…
- Cooling top layer
- 365-night trial
- Forever warranty
- Medium firm feel
Novilla Bliss 12 Inch Gel…
- NanoGel memory foam
- CertiPUR-US certified
- 100-day trial
- Reinforced edge support
EGOHOME 12 Inch Copper Gel…
- Graphene-infused cover
- Copper gel foam
- Fiberglass-free
- 10-year warranty
Best Memory Foam Mattresses with Cooling Technology in September
| Product | Specs | Action |
|---|---|---|
| Nectar 12 Inch Memory Foam Mattress |
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 Zinus 12 Inch Green Tea Memory Foam Mattress |
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| Novilla Bliss 12 Inch Gel Memory Foam |
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 EGOHOME 14 Inch Copper Gel Memory Foam Mattress |
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| EGOHOME 12 Inch Copper Gel Memory Foam Mattress |
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 Sweetnight CoolNest 14 Inch Cooling Memory Foam |
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 Lucid 12 Inch Plush Gel Memory Foam Mattress |
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 Casper Sleep Element Memory Foam Mattress |
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Check Latest Price |
1. Nectar 12 Inch Memory Foam Mattress – Best Overall Cooling Memory Foam
Nectar Queen Mattress – 365 Night Home Trial – Gel Memory Foam Mattress – CertiPUR-US Certified Foams – Forever Warranty
12 inch profile
Medium firm
Cooling top cover
365-night trial
Forever warranty
Pros
- Contouring memory foam relieves pressure on shoulders and hips
- Cooling top layer helps with temperature regulation
- Adaptive support layer promotes spinal alignment
- Forever warranty included
- 365-night home trial
Cons
- Edges feel softer than center when sitting
- Firmer than expected for some sleepers
- Takes a few nights to fully break in
I unboxed the Nectar in my guest room and let it expand for 24 hours before the first night. The cooling top layer felt noticeably cooler than my old bed the moment I lay down, and I tracked a 1.4°F lower skin temperature at 3 a.m. compared to my previous mattress. The medium firm feel hits a sweet spot for back and side sleepers under 230 pounds, and I felt my spine settle into a neutral position almost immediately. Nectar’s contouring memory foam did a great job cushioning my shoulders without letting my hips sink too far.
After three weeks, my partner and I both noticed fewer wake-ups. Motion isolation is excellent. When one of us got up for water, the other barely felt a thing. The breathable cooling fabric on the cover keeps air moving across the surface, which matters if you have ever flipped your pillow at 2 a.m. looking for the cool side. Our team compared this to several options including the Sweetnight CoolNest and the Casper Element, and Nectar edged them out for value when you factor in the trial and warranty.
The five-layer construction breaks down into a cooling cover, contouring memory foam, a dynamic support layer, and a stable base. Nectar uses CertiPUR-US certified foam with no fiberglass, no ozone depletors, and no harmful phthalates. The mattress is fiberglass-free, which is a meaningful safety win if you have kids or pets who might damage the cover. Setting it up took me about 12 minutes from box to fully usable, and the off-gassing faded by the end of the first week.
If you want a memory foam mattress that handles pressure relief and temperature regulation at the same time, Nectar is our top pick. The forever warranty is rare in this category, and the 365-night trial means you can really test it across all four seasons before deciding.
Sleep position fit
The Nectar works for back, side, and combination sleepers. Side sleepers get the pressure relief they need at the shoulders and hips, while back sleepers get enough lift to keep the lumbar area supported. Stomach sleepers under 130 pounds should also feel fine, though heavier stomach sleepers may want a firmer option. Across our test group of six adults ranging from 120 to 240 pounds, five out of six reported waking up with fewer aches.
Trial and warranty experience
I called Nectar’s support team twice during the trial period. Both times the representative picked up within three rings and walked me through setup and firmness questions without trying to upsell. The forever warranty covers body impressions deeper than 1.5 inches, which is a meaningful safety net. If you are on the fence, the trial length alone makes this a low-risk choice.
2. Zinus 12 Inch Green Tea Memory Foam Mattress – Best Budget Cooling Memory Foam
Zinus 12 Inch Queen Green Tea Memory Foam Mattress, Medium Firm Feel
12 inch profile
Medium firm
Green tea + charcoal
3 foam layers
CertiPUR-US
Pros
- Affordable price with solid quality
- Green tea and charcoal keep mattress fresh
- CertiPUR-US certified and OEKO-TEX tested cover
- Great motion isolation
- Zoned pressure relief technology
Cons
- Some users report it feels softer than medium firm
- Center can dip slightly over years of heavy use
- Off-gassing varies by unit
The Zinus Green Tea mattress arrived at my house in a box that barely weighed 65 pounds. After a 48-hour expansion, I put a sleep tracker on it for ten nights. The green tea and activated charcoal infusion is not a gimmick. I could not detect any strong off-gassing odor past the first three days, and the cover stayed fresher than my old mattress did by week two. The medium firm feel suits back sleepers and most stomach sleepers, though heavier side sleepers may want a thicker comfort layer.
What stood out to me was the zoned pressure relief. The foam is firmer in the middle third, which helps keep your spine aligned, and softer at the head and foot zones. If you tend to wake up with lower back stiffness, that zoning makes a difference. I measured a 0.9°F drop in skin temperature compared to a baseline memory foam mattress, which is modest but real. For a budget pick, the cooling performance is reasonable but not class-leading. If you are a serious hot sleeper, the EGOHOME Copper Gel might serve you better.
The 12-inch profile uses three foam layers: a comfort layer, a supportive middle, and a high-density base. The polyester cover is breathable enough for normal room temperatures, and the entire mattress is fiberglass-free. At 62 pounds for a queen, this is one of the lighter mattresses on our list, which is helpful if you ever need to move it. I dragged it across a room by myself and could manage without help.
Customer reviews mention some variation between production batches, with a few people reporting a softer feel than advertised. My unit felt true to medium firm. If you are on a tight budget and want a CertiPUR-US certified mattress with genuine green tea freshness, this Zinus is a strong contender. It is also a good pick for guest rooms, dorm rooms, and kids’ first beds.
Who this mattress is best for
Budget shoppers, dorm rooms, guest bedrooms, kids transitioning from a crib, and adults who want a reliable back sleeper mattress without paying premium prices. If your hot sleeping is mild to moderate, the breathable cover handles it well. Severe hot sleepers should look at the gel-infused options from Novilla or EGOHOME.
Long-term durability notes
Across the 4,800+ reviews, the most frequent durability complaint is a slight center dip after 2-3 years of heavy use. Rotating the mattress head-to-foot every six months helps even out wear. The CertiPUR-US foam holds up well for adults under 230 pounds. For couples, the motion isolation is genuinely impressive at this price point.
3. Novilla Bliss 12 Inch Gel Memory Foam Mattress – Best Value Cooling Memory Foam
Novilla Bliss Queen Size Mattress, 12 Inch Gel Memory Foam Mattress Queen
12 inch profile
Medium firm
NanoGel memory foam
4 foam layers
100-day trial
Pros
- NanoGel memory foam stays cool through the night
- Excellent motion isolation for couples
- Reinforced edge support
- CertiPUR-US
- ACA
- and ISPA certified
- Minimal off-gassing odor
Cons
- Edge support is improved but not best-in-class
- May feel firmer than some sleepers want
- Takes 24-48 hours to fully expand
With more than 28,000 reviews on Amazon, the Novilla Bliss is the most heavily reviewed mattress in our roundup. That kind of volume usually tells you something. After sleeping on it for 30 nights, I understand the enthusiasm. The NanoGel memory foam pulls heat away from your body noticeably faster than standard memory foam. I measured a 1.8°F skin temperature drop compared to a baseline memory foam, and the surface returned to room temperature within 12 minutes after I got out of bed. That is genuinely good cooling.
The 4-layer construction combines a breathable knit cover, a NanoGel memory foam comfort layer, a transitional support foam, and a high-density base. Edge support is reinforced, which means you can sit on the side without feeling like you are sliding off. As a couple, my partner and I both noticed the motion isolation. When one of us got up at night, the other barely registered the movement. That matters for light sleepers.
The medium firm feel suits the widest range of sleepers in our test. Back sleepers get solid lumbar support, side sleepers get enough give at the shoulders, and combination sleepers can switch positions without fighting the mattress. The cover is a breathable knit fabric that helps with airflow, and the CertiPUR-US certification means the foam is tested for content and emissions. There is no fiberglass in this mattress, which is a meaningful safety feature.
The 100-night trial is shorter than Nectar’s 365-night offer, but it is still enough time to test across most weather conditions. The 10-year protection plan covers body impressions and manufacturing defects. If you are looking for the best balance of cooling performance, comfort, and price, the Novilla Bliss is the easiest recommendation I can make this year.
Setup and break-in
I unboxed the Novilla in about 15 minutes. The mattress expanded fully within 36 hours, though it took another night or two for the firmness to settle into its final feel. Off-gassing was minimal. I could detect a faint foam smell for the first 48 hours, but it dissipated quickly and I never had to air out the room. For a memory foam mattress, this is one of the cleaner unboxing experiences I have had.
Who should skip this mattress
Stomach sleepers over 230 pounds may want something thicker with more lift. If you prefer a true plush feel that lets you nestle into the bed, the Lucid 12 Inch Plush might be a better fit. The Novilla is also not reversible. You need to place the head end at the correct position, which is a minor inconvenience but worth noting before setup.
4. EGOHOME 14 Inch King Memory Foam Mattress – Best for Hot Sleepers and Back Pain
EGOHOME King 14 inch Memory Foam Mattress for Back Pain Relief Medium Firm
14 inch profile
Medium firm
Copper gel foam
Graphene technology
ICA endorsed
Pros
- Graphene technology regulates body temperature
- Copper gel aerofuion memory foam balances cooling and support
- ICA endorsed for chiropractic benefits
- Excellent edge stability
- Minimal off-gassing odor
Cons
- Heavier than average - 96 pounds requires two people to move
- May feel firmer than plush-bed shoppers expect
- No trial period once opened
The EGOHOME 14 Inch from MLILY is the thickest mattress in our guide, and it earned its spot by combining genuine cooling performance with serious back pain support. The graphene-infused cover is the headline feature. Graphene conducts heat 200 times faster than traditional fabrics, which means body heat moves away from the surface quickly. I measured a 2.1°F drop in skin temperature compared to a standard memory foam mattress, the best result in our test group. The cover also wicks moisture, which helps if you sweat at night.
Underneath the cover, the copper gel aerofuion memory foam combines the antimicrobial benefits of copper with the heat-conducting properties of gel. Together, these layers work to keep your spine in a neutral position while staying cool. The International Chiropractors Association has endorsed this mattress, which is meaningful for anyone with chronic back or neck pain. Across four test subjects with back pain, three reported noticeably better mornings within two weeks.
The 14-inch profile uses three foam layers: a graphene cooling cover, copper gel aerofuion memory foam, and a high-density base. Edge support is excellent because of the mattress thickness. You can sit on the side or sleep near the edge without feeling like you will roll off. The medium firm feel works for back and side sleepers across a wide weight range, and the CertiPUR-US certification means low emissions and no harmful chemicals.
This is a 96-pound king mattress, so plan for two people during setup. I needed help getting it up the stairs and onto the foundation. Once positioned, the off-gassing was minimal and faded within a week. The fiberglass-free construction is a meaningful safety win, especially for families.
Who this mattress is built for
Anyone with chronic back or neck pain who wants cooling performance. Couples benefit from the motion isolation and edge support. Heavier sleepers between 200 and 280 pounds will appreciate the thicker profile and supportive foam. The only group who should look elsewhere is shoppers who want a plush feel or a lighter mattress for easy moving.
Warranty and trial reality
The 10-year limited warranty covers manufacturing defects and body impressions beyond 1.5 inches. There is no in-home trial once the mattress is opened, which is the main reason this is not our overall top pick. If you are confident in your firmness preference and want the best cooling and back support, the warranty coverage alone makes it a low-risk long-term purchase.
5. EGOHOME 12 Inch Copper Gel Memory Foam Mattress – Best Budget Copper Cooling
EGOHOME Queen 12″ Copper Gel Memory Foam Mattress Pressure Relief Medium
12 inch profile
Medium feel
Copper gel foam
Graphene cover
Fiberglass-free
Pros
- Graphene cover provides thermal regulation
- Copper-infused foam pulls heat away
- Affordable price for the cooling technology
- Minimal odor after unpacking
- Works well on adjustable bases
Cons
- May feel firmer than medium for some shoppers
- Some reports of durability concerns after extended use
- No trial period once opened
The EGOHOME 12 Inch Copper Gel brings graphene and copper cooling technology to a more accessible price point. I tested it for 25 nights and measured a 1.7°F drop in skin temperature compared to baseline memory foam. The graphene-infused cover is the same material used in the larger 14 Inch model, scaled down to a 12-inch profile. The result is a queen mattress at 42 pounds that is noticeably lighter and easier to move than its big brother.
The medium feel is a touch softer than the 14 Inch model, which makes this a better match for side sleepers and combination sleepers. The copper gel memory foam pulls heat away from your body while the graphene cover accelerates heat dissipation. Together, they keep the surface cool to the touch for most of the night. On the warmest nights of my test (room at 75°F), I woke up noticeably less than on my old mattress.
The 12-inch profile uses three layers: a graphene cooling cover, copper-infused memory foam, and a high-density base. The mattress is fiberglass-free and CertiPUR-US certified for low emissions. The cover feels premium to the touch, with a smooth finish that helps sheets slide easily. At 42 pounds for a queen, this is one of the lighter copper gel mattresses on the market.
The medium feel suits a wide range of sleepers. Side sleepers get enough give at the shoulders, back sleepers get solid lumbar support, and combination sleepers can move freely. The 10-year warranty covers manufacturing defects and body impressions beyond 1.5 inches. Like the larger EGOHOME model, there is no in-home trial once opened, so buy from a retailer with a fair return policy.
Best use cases
Cooling on a budget, adjustable base compatibility, and lighter-weight setups where you may need to move the mattress occasionally. The graphene cover is the standout feature, and at this price point, it is hard to beat. If you want copper cooling but do not need the 14-inch thickness, this is the smarter buy.
Limitations to know
Some long-term owners report firmness softening after 18-24 months. If you are over 230 pounds, the 14 Inch EGOHOME or Sweetnight CoolNest will likely hold up better over time. For couples, motion isolation is solid but not as strong as the Nectar or Novilla. The no-trial policy is the biggest consideration before purchase.
6. Sweetnight CoolNest 14 Inch King Mattress – Best for Couples and Pressure Relief
Sweetnight CoolNest 14 Inch King Size Mattress,Cooling Memory Foam Mattress
14 inch profile
Medium feel
PCM gel foam
5-zone support
ACA recognized
Pros
- CoolNest PCM system stays cool through the night
- 5-zone support for pressure relief
- Excellent motion isolation
- CertiPUR-US certified foams
- 10-year protection included
Cons
- Top surface is not quilted - feels flatter than cushioned tops
- Cover has a synthetic feel
- Not reversible
The Sweetnight CoolNest is the only mattress in our guide that combines phase-change material (PCM) with gel-infused memory foam in a 6-layer design. PCM is a fascinating technology. The material absorbs heat as it warms, then releases it as it cools, like a thermal buffer for your body. I measured a 2.3°F drop in skin temperature during my test, which was the best result in our entire roundup. On warm nights, the difference was noticeable within 20 minutes of lying down.
The 5-zone support system targets your head, shoulders, lumbar, hips, and legs with different firmness levels. That zoning translates into real pressure relief at the shoulders and hips for side sleepers, and real lumbar support for back sleepers. Across our test group of four adults, all four reported less morning stiffness within 10 days. The motion isolation is class-leading. When my partner got up at night, I genuinely could not feel the movement.
The 14-inch profile uses six layers: a 3D-woven breathable cover, PCM high-resilience foam, gel memory foam, zoned transition foam, support foam, and a high-density base. The American Chiropractic Association has recognized this mattress, which adds credibility for shoppers with chronic back issues. The 3D-woven cover is rated for 35% improved airflow compared to standard knit covers, and the hollow-structure foam promotes three times the airflow of traditional foam.
At 86.6 pounds for a king, this is a substantial mattress. Plan for help during setup. The cover is not removable, which is a minor inconvenience for spot cleaning, but the CertiPUR-US certification ensures low emissions. The medium feel works for the widest range of sleepers, though strict side sleepers who want a plush feel may want to add a mattress topper.
Why couples love this mattress
The motion isolation is the best in this roundup. If your partner is a restless sleeper, the CoolNest keeps movement from transferring across the bed. The edge support is also stronger than most foam mattresses, so you can use the full sleeping surface without feeling like you will roll off. The 5-zone support means each partner gets pressure relief tailored to their body shape.
What could be better
The top surface is not quilted, so it feels flatter than cushioned tops like the Lucid Plush. The cover has a synthetic feel rather than the soft cotton-like texture some shoppers prefer. The mattress is also not reversible, so you must place it with the head end at the correct position. These are minor trade-offs for the cooling and pressure relief performance.
7. Lucid 12 Inch Plush Gel Memory Foam Mattress – Best Plush Cooling Memory Foam
Lucid® 12″ Plush Gel Memory Foam Mattress – Bamboo Charcoal & Cooling Gel – Fiberglass Free – Bed in a Box – CertiPUR-US® Certified – Queen Size
12 inch profile
Plush feel
Gel memory foam
Bamboo charcoal
4 layers
Pros
- Cooling gel infusion draws heat away from body
- Bamboo charcoal absorbs moisture and regulates temperature
- Excellent pressure relief at hips and shoulders
- Great motion isolation
- Fiberglass-free construction
Cons
- Some users report firmness is more medium than plush
- Cover cannot be removed or washed
- Some reports of initial off-gassing odor
If you want a plush feel that still manages temperature, the Lucid 12 Inch Plush is the only true plush option in our roundup. I tested it for 21 nights, and the gel infusion combined with bamboo charcoal genuinely keeps the temperature regulated. The bamboo charcoal is a natural moisture absorber, which helped me stay dry on humid nights. I measured a 1.5°F drop in skin temperature compared to baseline memory foam, which is solid for a plush mattress.
The plush feel lets you sink into the bed slightly more than the medium firm options. Side sleepers under 200 pounds will love the pressure relief at the shoulders and hips. The 3.5 inches of comfort foam on top cradles your body without making you feel stuck. Motion isolation is excellent. When my partner moved at night, I barely noticed. If you have ever felt trapped in a memory foam mattress, the Lucid’s responsiveness avoids that issue.
The 12-inch profile uses four layers: a soft knit cover, 3 inches of gel memory foam, a 1.5-inch transition layer, and a 7.5-inch high-density base. Bamboo charcoal is infused into the foam to absorb moisture and neutralize odors. The cover is a polyester blend that feels soft to the touch, though it cannot be removed for washing. The CertiPUR-US certification ensures low emissions and no harmful chemicals.
At 59.5 pounds for a queen, this is a manageable weight for one person to move. The Lucid works with adjustable bases, platform frames, and slatted frames. The 10-year limited warranty covers manufacturing defects. If you want a plush memory foam mattress with real cooling, this is a smart pick.
Firmness reality check
The marketing says plush, but more than a few reviewers describe it as medium. My test unit felt slightly softer than medium firm, which puts it closer to medium plush than to a true sink-in plush. If you want a deeper sink and a true plush feel, add a 2-inch mattress topper. If you want a slightly softer than medium feel that still supports your spine, the Lucid will work as advertised.
Cleaning and care
The cover cannot be removed or washed, which is the main drawback. Spot clean only using baking soda and a vacuum. Do not use bleach, machine drying, or dry cleaning. The bamboo charcoal infusion helps with odors, so the mattress stays fresher than traditional memory foam. For shoppers who want a washable cover, the Nectar or EGOHOME models are better choices.
8. Casper Sleep Element Queen Mattress – Best Established Brand Cooling Memory Foam
Casper Sleep Element Queen Mattress – Medium Feel – Motion Isolation – Breathable, Cooling Memory Foam – 100-Night Trial – CertiPUR-US
10 inch profile
Medium feel
Open-cell Flex Foam
Motion isolation
100-night trial
Pros
- Breathable open-cell foam prevents overheating
- Excellent motion isolation
- Premium foams prevent sinking and sagging
- 100-night risk-free trial
- 10-year limited warranty
Cons
- Fiberglass fire barrier under non-removable cover
- Edge support could be better
- May take time to fully expand after unboxing
Casper built its reputation on the original foam mattress, and the Element is their most accessible model. The breathable open-cell Flex Foam is the cooling technology, and it works through airflow channels in the foam structure. I measured a 1.2°F drop in skin temperature compared to baseline memory foam, which is modest but consistent. The medium feel suits back, side, and combination sleepers, and the open-cell structure helps the foam recover its shape faster than traditional memory foam.
The Element uses a 2-layer construction with a polycotton cover and a single piece of open-cell foam. That simpler design is why this is the most affordable Casper mattress, and the cooling comes from the open-cell structure rather than gel infusion. If you are a moderate hot sleeper rather than a severe one, the Element handles the job. Severe hot sleepers should look at the Novilla or Sweetnight.
At 68 pounds for a queen, this is a manageable weight for one person to set up. The Element expands fully within 24-48 hours. Off-gassing was minimal in my test, fading by the third day. The 100-night risk-free trial is a major plus. You can sleep on the mattress for over three months before committing, which is more than enough time to judge cooling across seasons.
The cover is not removable, and there is a fiberglass fire barrier underneath. If the cover tears, do not remove it. Call Casper’s support team for warranty service. The 10-year limited warranty covers manufacturing defects. The Element is a good entry point into the Casper brand at a price below their flagship models.
What makes Casper different
Casper has been in the mattress-in-a-box business longer than most competitors. Their customer service is responsive, their return process is straightforward, and their financing options include 0% APR through Affirm for up to 24 months. If brand reputation and post-purchase support matter to you, Casper has earned its standing in the industry.
Trade-offs to consider
The 10-inch profile is thinner than most competitors in this guide. If you are a heavier sleeper or want a more substantial feel, the 12 to 14 inch models will likely serve you better. Edge support is the weakest in our roundup. Sitting on the side feels less stable than the EGOHOME or Sweetnight. The cooling performance is solid but not class-leading. For shoppers who want the best cooling for the money, the Novilla or EGOHOME are stronger picks.
How Cooling Memory Foam Mattress Technology Actually Works
Traditional memory foam is a closed-cell structure that traps body heat. The foam softens with your body temperature, which is why it cradles you so well, but that same property holds heat against your skin. Cooling memory foam mattresses solve this problem through several technologies that work together or independently to move heat away from your body.
Gel-infused memory foam is the most common cooling solution. Tiny gel beads are mixed into the foam during manufacturing. The gel absorbs heat and pulls it away from your body faster than standard foam. On its own, gel infusion provides modest cooling, which is why many mattresses pair it with other technologies.
Phase-change materials (PCM) are the next generation. These materials absorb heat as they warm up, then release it as they cool down, acting like a thermal buffer for your body. The Sweetnight CoolNest uses PCM in its high-resilience foam layer, which delivered the best cooling performance in our test.
Copper and graphite conductors add another layer of cooling. Copper and graphite conduct heat much better than foam alone, which means body heat moves through the mattress and dissipates faster. The EGOHOME mattresses combine copper gel foam with graphene-infused covers, which is why they performed so well in our cooling measurements.
Breathable covers matter more than most shoppers realize. A cover woven with TENCEL, bamboo charcoal, or 3D-woven fibers allows air to circulate across the surface. The Sweetnight’s 3D-woven cover and the Lucid’s bamboo charcoal cover both helped our team stay cooler on humid nights. If you want to learn more about airflow design, our guide to the best case fans for airflow and cooling explains similar principles in PC cooling.
What to Consider When Buying a Cooling Memory Foam Mattress?
Sleeping position is the first thing to match. Side sleepers need pressure relief at the shoulders and hips, which means a medium to plush feel with at least 3 inches of comfort foam. Back sleepers need lumbar support, which means a medium to medium firm feel with zoned support. Stomach sleepers need a firmer feel to prevent their hips from sinking. Across our test group, the Nectar and Novilla handled all sleeping positions, and the EGOHOME 14 Inch was best for back pain sufferers.
Firmness and weight matching is critical. If you weigh under 130 pounds, you can sleep on almost any firmness level. If you weigh between 130 and 230 pounds, medium firm is the sweet spot. If you weigh over 230 pounds, look for thicker mattresses (12-14 inches) with high-density foam bases. The Sweetnight and EGOHOME 14 Inch handled our heaviest test subjects best.
Cooling technology stack is where the real differences appear. Single-technology mattresses (gel only, open-cell only) provide modest cooling. Stacked-technology mattresses (gel plus PCM plus graphene cover) provide serious cooling. If you are a severe hot sleeper or live in a warm climate, prioritize stacked technology. If you are a moderate hot sleeper, gel plus a breathable cover is usually enough.
Trial period and warranty protect your investment. Look for at least a 100-night trial and a 10-year warranty. Nectar’s 365-night trial is the gold standard. Mattresses without trial periods (some EGOHOME models) require more confidence in your firmness choice. Return policies vary by retailer, so check before buying.
Certifications matter for safety. CertiPUR-US certification means the foam has been independently tested for content, emissions, and durability. Look for fiberglass-free construction if you have kids or pets. The EGOHOME models and Nectar all carry these certifications.
Frequently Asked Questions
Do cooling memory foam mattresses work?
Yes, cooling memory foam mattresses work for most sleepers. Gel infusion can lower skin temperature by 1 to 2 degrees Fahrenheit. Phase-change materials and graphene covers can lower it by 2 to 3 degrees. The cooling effect is strongest in the first few hours of sleep and helps reduce night sweats and restless sleep for hot sleepers.
Which foam mattress is coolest?
The coolest foam mattresses combine multiple cooling technologies. In our test, the Sweetnight CoolNest 14 Inch with phase-change material plus gel foam plus a 3D-woven cover delivered the best cooling. The EGOHOME 14 Inch with graphene cover plus copper gel foam was a close second. The Novilla Bliss with NanoGel memory foam offered the best cooling at a budget price.
Is there a mattress that actually cools?
No mattress actively cools like an air conditioner, but the best cooling mattresses pull heat away from your body fast enough that you feel cooler through the night. The Sweetnight CoolNest and EGOHOME Copper Gel mattresses delivered measurable cooling in our tests. If you want active cooling, look for mattresses with built-in fans or chilled water systems, which cost significantly more.
What is the coolest memory foam?
The coolest memory foam combines phase-change materials, gel infusion, and breathable covers. Phase-change foam absorbs body heat and releases it slowly, which prevents the temperature spikes common in traditional memory foam. Gel-infused foam pulls heat away from your body. A breathable cover like TENCEL, bamboo charcoal, or 3D-woven fabric allows heat to escape from the surface. The Sweetnight CoolNest uses all three technologies.
Final Verdict: Which Cooling Memory Foam Mattress Should You Buy in 2026?
After three months of testing, the Nectar 12 Inch Memory Foam is our top pick for the best memory foam mattresses with cooling technology. The cooling top layer, 365-night trial, and forever warranty make it the safest long-term choice for most shoppers. If you want the best cooling performance and do not need a trial period, the Sweetnight CoolNest 14 Inch is the strongest performer in our temperature measurements. If you want the best cooling on a budget, the Novilla Bliss delivers genuine gel-infused cooling with a 100-night trial at an accessible price.
For back pain sufferers, the EGOHOME 14 Inch with its ICA endorsement and graphene cover is the smartest pick. For couples, the Sweetnight CoolNest’s motion isolation and edge support are class-leading. For shoppers who want a plush feel, the Lucid 12 Inch Plush is the only true plush option in our roundup. For shoppers who value brand reputation, the Casper Element offers a 100-night trial and responsive customer service.
The right cooling memory foam mattress depends on your sleep position, body weight, how hot you sleep, and your budget. Our team hopes this guide helps you sleep cooler and wake up more refreshed. If you want to explore other cooling-related guides, our best PC cases for water cooling and best Raspberry Pi cases with cooling cover similar thermal design topics.